Ib tus piv yog ib txwm sau siv tag nrho cov lej nkaus xwb, tsis muaj units, hauv nws daim ntawv yooj yim tshaj plaws. Cov lej hauv qhov sib piv yuav tsum tau sau siv tib lub units. Yog tsis yog lawv yuav tsum hloov mus rau tib units Tsis muaj teeb meem dab tsi yog siv rau kev hloov pauv.
Puas yog cov piv txwv yooj yim sau nrog cov units?
Lawv ob leeg tuaj yeem yog sau ua ntu, siv tus lej, lossis siv lo lus "rau" lossis "ib". Txij li cov nqi sib piv ob qhov ntsuas hauv qhov sib txawv ntawm kev ntsuas, xws li nyiaj daus las ib teev lossis hnub mob hauv ib xyoos, lawv yuav tsum suav nrog lawv cov units.
Vim li cas tus piv tsis muaj chav?
Thaum ob qhov ntau muaj tib chav ntsuas, lawv qhov piv tsis muaj qhov ntsuas. Tus nqi, zoo li qhov piv, yog qhov sib piv ntawm ob qhov ntau, tab sis qhov ntau yuav muaj qhov sib txawv ntawm kev ntsuas thiab lawv qhov piv muaj ib chav ntsuas.
Puas muaj qhov piv txwv sau ua tus nqi tsev?
Koj tuaj yeem sau ib tus nqi raws li tus nqi unit tus nqi los ntawm kev txo cov feem kom nws muaj 1 raws li tus lej lossis lub sijhawm thib obUa piv txwv tus nqi, koj tuaj yeem qhia tau tias chav tsev tus nqi ntawm 120 tus menyuam kawm ntawv rau txhua 3 lub tsheb npav yog 40 tus menyuam kawm ntawv ib lub npav. Koj tuaj yeem pom tus nqi tsev los ntawm kev faib thawj lub sijhawm ntawm qhov piv los ntawm lub sijhawm thib ob.
tus piv ntawm 5 2 txhais li cas?
Tus piv yog kev sib raug zoo ntawm ob tus lej. Piv txwv li koj muaj 2 lub teeb nyem thiab 5 lub roj teeb. … Qhov piv yog 2 rau 5 lossis 2:5 lossis 2/5. Tag nrho cov no piav txog qhov piv ntawm ntau hom ntawm feem. Qhov sib piv tuaj yeem ua rau nthuav tawm raws li feem ntau lossis ua tus lej.
